JPH0618214Y2 - Grain drying equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a grain drying apparatus for drying grains with dry air, and in particular, a grain drying apparatus provided with an elevator for lifting and transporting grains to the upper part of the machine body. Regarding

[Prior Art] In order to dry a grain, a circulation type grain drying device is used in which the grain is circulated and fluidized in the machine body to feed dry air to dry the grain.

In this type of circulation type grain drying device, an elevator is erected on the front side of the machine body, and the grain is lifted and conveyed to the uppermost part of the device by this elevator. Grains lifted and conveyed to the top of the machine are temporarily stored in the machine and then dried by receiving dry air while naturally flowing in the grain flow passages arranged in the machine.

On the other hand, a dust remover is arranged at the lower end on the rear surface side of the machine body, and is further connected to the lower end of the elevator by a dust removing duct. For this reason, the bucket in the elevator sucks up dust and straw generated when the grain is picked up and conveyed, and discharges it to the outside of the machine.

[Problems to be solved by the invention] By the way, in this case, in order to discharge the sucked dust and straw waste to a place far away from the grain drying device, a dust remover provided at the lower end of the machine is used. After installing the dust pipe,
Further, the dust pipe must be extended upward along the rear wall of the machine body so that the dust outlet is located at a high position and the dust is discharged.

In the conventional grain dryer, this dust pipe is exposed to the outside of the machine body, and when installing the grain dryer in the work shed, an extra space is required for this dust pipe, and the space cannot be used effectively. There was a problem. Furthermore, the dust pipe exposed to the outside is not smart in appearance and looks bad.

In consideration of the above facts, the present invention can discharge dust and straw in the device extremely efficiently according to the generation situation, and in addition, it is possible to effectively use the space with a compact shape and also looks good. The aim is to get a better grain dryer.

[Means for Solving the Problems] In the grain drying apparatus according to the present invention, a grain drying apparatus including an elevator for lifting and transporting grain to the upper part of the machine by a bucket attached to an endless conveyor provided in the vertical direction. And a communication passage provided along the inner surface of the side wall that constitutes the elevator and located inside the endless conveyor of the endless conveyor, and into the elevator formed in an intermediate portion and a lowermost end portion of the communication passage. A dust removing member communicating with the dust removing member, which is arranged corresponding to the dust removing member provided at an intermediate portion of the communication passage and is slidably movable to change a substantial opening area of the dust removing member, and an upper portion of the machine body. A dust remover that is arranged and communicates with the upper end of the communication passage, and a dust pipe that is arranged in the upper part of the machine body toward the rear of the machine and that communicates with the dust remover,
It is characterized by having.

[Operation] In the grain drying apparatus having the above configuration, when the dust remover is operated, dust and straw waste are sucked through the communication passage from the two dust removal ports formed in the communication passage. The sucked dust and straw debris are discharged from the rear of the machine body through a dust pipe. Since the communication passage and the dust pipe are arranged inside the elevator or the machine body, neither is exposed to the outside. Furthermore, since the communication passage is located inside the endless conveyor, which is originally a dead space, it is possible to effectively use the space with a compact shape and not only to improve the appearance but also to improve the grain storage tank. It is possible to prevent problems such as erosion of the volume and reduction of the grain storage capacity. Further, since the dust is sucked and discharged from the two dust removal ports, the dust and straw that fall in the elevator is appropriately sucked and discharged from the dust removal port provided in the middle of the communication passage, Unnecessarily accumulated too much at the lowermost end is prevented, and dust can be efficiently discharged. In addition to this, by appropriately adjusting the dust removing member, the substantial opening area of the dust removing port provided in the middle portion of the communication passage is changed, and dust and straw in the device are changed according to the generation status. It can be discharged very efficiently.

[Embodiment] FIG. 1 shows an overall perspective view of a grain drying device 10 according to an embodiment of the present invention, and FIG. 2 shows a schematic sectional view of the grain drying device. Fig. 3 shows Fig. 2 III-II.
A cross-sectional view along line I is shown, and FIG.
A cross-sectional view along line V-IV is shown.

The fuselage 12 includes a pair of left and right side walls 14, a front wall 16 and a rear wall 1.
8, an outer frame of the grain drying device 10 constituted by the ceiling wall 20 and the bottom wall 22, and has a box-like shape that is high in the vertical direction and long in the front-back direction.

The upper inner cave of the machine body 12 is a grain tank 24. Further, a drying section 26 is arranged in the lower part. An air guide passage 28 is formed in the drying unit 26 by a breathable partition wall.
Dry air can be fed to the grains in 6. A burner 30 is arranged on the front side of the air guide passage 28, and a suction / exhaust fan 32 is arranged on the rear side thereof. For this reason, the dry air generated by the burner 30 is sucked by the suction / exhaust fan 32 and sent to the air guide passage 28, and after absorbing the moisture of the grain in the drying section 26, the dry air is sucked by the suction / exhaust fan 32 and then the grain drying device is passed. 10 is discharged to the outside.

Below the drying unit 26, a shutter drum 34 is arranged. The shutter drum 34 has a hollow cylindrical shape with a horizontal axis, and a slit-like notch having a predetermined width dimension along the axial direction is formed in a part of the outer circumference. The shutter drum 34 rotates around the axis and the notch is positioned upward, so that the grain passes through the notch and the shutter drum 3
4, the shutter drum 34 further rotates and the notch is positioned downward so that the inflowing grain is fed downward.

Below the shutter drum 34, the lower screw conveyor 3 is provided.
6 are arranged. The lower screw conveyor 36 is arranged in the longitudinal direction of the grain drying device 10, and is configured to feed the grain fed by the shutter drum 34 to the front wall 16 side by the outer peripheral spiral blades.

An elevator 38 stands upright at the end of the lower screw conveyor 36 in the transport direction. The elevator 38 is formed in a vertically high box shape by the side wall 39, and the grain transport buckets 41 are attached to the endless conveyor 43 at regular intervals inside. Therefore, the grain sent from the lower screw conveyor 36 is scooped up by the grain transport bucket 41 so that the grain is lifted to the uppermost portion of the machine body 12 and the grain can be stored in the grain tank 24.

Inside the elevator 38, a communication passage 44 is vertically provided integrally with the side wall 39.
A dust removing port 46 and a dust removing port 47 communicating with the inside of the elevator 38 are formed at the middle portion and the lowermost end portion of No. 4. A dust remover 48 is disposed on the front wall 16 near the upper portion of the elevator 38, and communicates with the upper end of the communication passage 44 via a pipe 49. Therefore, when the dust remover 48 is operated, the air containing dust and straw in the elevator 38 is sucked and flows into the communication passage 44 through the dust remover 46 and the dust remover 47.

To the dust remover 48, one end of a dust pipe 50 installed inside the upper part of the machine body 12 is attached.
The other end of 0 is exposed from the rear wall 18 to the outside. Therefore, the air sucked by the dust remover 48 and flowing into the communication passage 44 passes through the dust remover 48 and is then discharged from the rear side of the machine body 12 via the dust discharge pipe 50.

A dust removing member 52 is attached to the communication passage 44 at a position where the dust removing port 46 is formed. The dust removing member 52 is provided with a base portion 54 and an arm portion 55 formed by bending a plate material at a substantially right angle. The bending portion is arranged in the vertical direction, and the arm portion 55 is arranged so as to face the descending grain transporting bucket. There is. Long holes 56 are formed at both ends of the base 54 in the longitudinal direction along the longitudinal direction. A mounting bolt 58 fixed to the side wall of the communication passage 44 is inserted into the elongated hole 56, and is further tightened and fixed by a nut 60. Therefore, the base portion 54 has a long hole 56 at the insertion position of the mounting bolt 58.
The mounting position can be changed vertically by moving along.

A dust removal port 62 is formed at the center of the base 54. The dust removal port 62 is formed so as to overlap the dust removal port 46 at a position corresponding to the dust removal port 46 formed in the communication passage 44, and the insertion position of the attachment bolt 58 in the elongated hole 56 is moved to move the attachment position of the base portion 54. By changing, the relative positions of both openings can be shifted to change the substantial opening area. Therefore, the amount of air sucked by the dust remover 48 and discharged from the dust discharge pipe 50 can be changed according to the opening area.

A dust removal net 64 is attached near the dust removal opening 62 of the base 54. The dust removal net 64 is attached so as to be tilted down from the upper end of the arm 55 in a front view (state shown in FIG. 4), then folded back toward the arm 55 and tilted down again. It is attached so as to cover the dust removal port 62 formed in the base portion 54 as a whole. Dust removal net 64
The mesh is formed to be smaller than the grain size of the grain, so that the grain cannot pass through. Also, this dust removal net 6
A gap 66 is formed between the lower end of 4 and the arm 55. Therefore, the air containing dust and straw in the elevator 38 sucked by the dust remover 48 is introduced into the communication passage 44 from the overlapping portion of the dust remover 62 and the dust remover 46 via the dust remover 64 or the gap 66. In this case, fine dust and the like are sifted by the dust removing net 64, and relatively large and light dust such as straw dust directly flows from the gap 66.

An inspection window 68 is provided at a position of the side wall 39 facing the dust removing member 52.
Is formed so that the dust removal net 64, the dust removal opening 62, the mounting bolt 58, and the nut 60 can be inspected.

Next, the operation of this embodiment will be described.

The circulation system device (the lower screw conveyor 36, the elevator 38) of the grain drying device 10 is driven to load the grain. Then, the grain is loaded into the machine 12 into the grain drying device 10.
The grain that has been stretched is successively conveyed to the elevator 38 side by the lower screw conveyor 36 and further rotated.
It is scooped up by the grain transport bucket 41 and is transported by lifting.

The grain lifted and conveyed above the machine body 12 by the elevator 38 is stored in the grain tank 24 in the machine body.

Further, here, after the completion of the tightening, the shutter drum 34 is rotated to feed the grain. When the burner 30 connected to the machine body 12 is ignited and the suction / exhaust fan 32 is driven, the dry air is sucked by the suction / exhaust fan 32 and sent to the air guide passage 28. The dry air sent to the air guide passage 28 is directly supplied to the grain, and the grain is dried here. The dry air after absorbing the moisture of the grain is discharged to the outside of the grain drying device 10 through the suction / exhaust fan 32.

On the other hand, the grain fed by the rotation of the shutter drum 34 reaches the lower screw conveyor 36 again, and if necessary, the above-described circulation action is repeated in the machine body 12 until the desired water content is reached, and the grain is lifted and conveyed again by the elevator 38. After that, it is discharged from a grain discharge port (not shown).

Dust and straw generated during the grain drying process, particularly when the grain transport bucket 41 of the elevator 38 scoops the grain, can be discharged to the outside of the machine body 12 by operating the dust remover 48. When the dust remover 48 is operated, the air containing dust and straw in the elevator 38 is sucked and flows into the communication passage 44 through the dust remover 46 and the dust remover 47. Dust removal port 46
Since the dust removing member 52 is attached to the dust removing port 62, the air flows into the communication passage 44 from the overlapping portion of the dust removing port 46 and the dust removing port 62.

In this case, the dust removal port 62 is attached with a dust removal net 64 so as to cover the dust removal port 62, and a gap 66 is formed between the lower end of the dust removal net 64 and the arm 55.
The air sucked by the dust remover 48 flows into the communication passage 44 through the dust removing net 64 or the gap 66, and at this time, fine dust and the like are sifted off by the dust removing net 64 and relatively large dust such as straw dust. Light materials flow directly into the communication passage 44 through the gap 66. Since the mesh of the dust removal net 64 is formed to be smaller than the grain size of the grain, the grain spilled from the grain transport bucket does not flow into the communication passage 44.

An inspection window 68 is provided at a position of the side wall 39 facing the dust removing member 52.
Since this is formed, the inspection window 68 can be opened to inspect and clean the inside.

Further, since the dust removing member 52 can change the attachment position up and down by moving the insertion position of the attachment bolt 58 along the elongated hole 56, the relative position of the dust removal port 46 and the dust removal port 62 can be changed. It is possible to change the substantial opening area of each of the shifted openings, and thereby the amount of air sucked by the dust remover 48 and discharged from the dust discharge pipe 50 can be adjusted.

The air that has flowed into the communication passage 44 passes through the dust remover 48 and is then discharged from the rear side of the machine body 12 through the dust discharge pipe 50.

The communication passage 44 and the dust pipe 50 are used for the elevator 38 or the machine body 1.
Since they are arranged inside 2, they are not exposed to the outside and have a compact shape, which makes the appearance good.

[Effects of the Invention] As described above, the grain drying apparatus according to the present invention is a grain drying apparatus including an elevator for lifting and transporting grain to the upper part of the machine by a bucket attached to an endless conveyor provided in the vertical direction. There is a communication passage provided along the inner surface of the side wall that constitutes the elevator and inside the endless conveyor of the endless conveyor, and communicates into the elevator formed at an intermediate portion and a lowermost end portion of the communication passage. And a dust removing member which is arranged corresponding to the dust removing port provided in the intermediate portion of the communication passage and which can be slid to change the substantial opening area of the dust removing port, and which is disposed on the upper part of the machine body. The apparatus is characterized by having a dust remover communicating with the upper end of the communication passage, and a dust pipe arranged in the upper portion of the fuselage toward the rear of the fuselage and communicating with the dust remover. The dust and straw in the interior can be discharged very efficiently according to the generation status, and in addition, it has an excellent effect that the space can be effectively used with a compact shape and the appearance looks good. .

[Brief description of drawings]

FIG. 1 is an overall perspective view of a grain drying device according to the present invention, and FIG.
The figure is a sectional view of the grain drying apparatus, FIG. 3 is a sectional view taken along line III-III in FIG. 2, and FIG. 4 is a sectional view taken along line IV-IV in FIG. 10 ... Grain dryer, 12 ... Airframe, 38 ... Elevator, 44 ... Communication passage, 46, 47 ... Dust removal port, 48 ... Dust remover, 50 ... Dust removal pipe, 52 ... Dust removal member.

Claims (1)

[Scope of utility model registration request] 1. A grain drying apparatus having an elevator for lifting and transporting grain to an upper part of a machine by a bucket attached to an endless conveyor provided in a vertical direction, which is provided along an inner surface of a side wall constituting the elevator. Further, a communication passage provided inside the endless conveyor is provided, a dust removal port formed at an intermediate portion and a lowermost end portion of the communication passage and communicating with the elevator, and provided at an intermediate portion of the communication passage. A dust removing member that is arranged corresponding to the dust removing port and is capable of changing the substantial opening area of the dust removing port by slidingly moving; and a dust remover that is disposed on the upper part of the machine and communicates with the upper end of the communication passage. , A dust pipe arranged in the upper part of the machine body toward the rear of the machine body and communicating with the dust remover, the grain drying device.